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pcie: clean up hot plug notification

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Simplify logic for hotplug notification, by tracking state of the
logical interrupt condition.  We then simply use this variable to make
the interrupt decision, according to spec.

API is made cleaner as we no longer force users to pass in
old slot control value.

Includes fixes by Isaku Yamahata.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp>
This commit is contained in:
Michael S. Tsirkin 2010-10-25 07:46:47 +02:00
parent ac0cdda347
commit 6bde6aaac6
4 changed files with 62 additions and 71 deletions
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6
hw/ioh3420.c
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@ -39,12 +39,9 @@
static void ioh3420_write_config(PCIDevice *d,
uint32_t address, uint32_t val, int len)
{
uint16_t sltctl =
pci_get_word(d->config + d->exp.exp_cap + PCI_EXP_SLTCTL);
pci_bridge_write_config(d, address, val, len);
msi_write_config(d, address, val, len);
pcie_cap_slot_write_config(d, address, val, len, sltctl);
pcie_cap_slot_write_config(d, address, val, len);
/* TODO: AER */
}
@ -142,6 +139,7 @@ static const VMStateDescription vmstate_ioh3420 = {
.version_id = 1,
.minimum_version_id = 1,
.minimum_version_id_old = 1,
.post_load = pcie_cap_slot_post_load,
.fields = (VMStateField[]) {
VMSTATE_PCIE_DEVICE(port.br.dev, PCIESlot),
/* TODO: AER */